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defon
2 years ago
11

Four students wrote different analogies to describe an electron before the formation of an ionic bond . Student A: A tug of war

between two wrestlers each weighing 460 lbs Student B: A dog and his owner tugging at a frisbee Student A big greedy dog stealing away a bone from a smaller dog Student D: Children exchanging their orange and strawberry flavored popsicles Which student presented a correct analogy ?
Chemistry
1 answer:
Nutka1998 [239]2 years ago
3 0

The correct analogy is that of "A big greedy dog stealing away a bone from a smaller dog."

An ionic bond is a bond formed formed between a metallic atom and a non-metallic atom.

The metallic atom is electropositive while the non-metallic atom is electronegative. Therefore, the metallic atom donates or gives up its electrons to the non-metallic atom which accepts the electrons.

During the formation of chemical bonds, only valence or outermost shell electrons are involved.

Metallic atoms have few valence electrons (between 1 to 3 electrons) while non-metallic atoms have many valence electrons (between 5 to 7 electrons).

Therefore the analogy by the student of a big greedy dog stealing away a bone from a smaller dog is correct because the non-metallic atoms takes the few electrons of the metallic atom and add to the many electrons they already have during the formation of an ionic bond.

Learn more about an ionic bond at: brainly.com/question/1225796

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During the winter months, many locations experience snow and ice storms. It is a common practice to treat roadways and sidewalks
Luden [163]

Answer:

The number of moles of CaCO3 on the bag is 112.90 moles

Explanation:

number mole (n) = mass (m) divided by molecular mass (Mm)

Mm of CaCO3 = 100.0869 g/mole

mass in grams = 11.3 Kg x (10^3 g/1 Kg) = 11300 grams

number of moles (n) = 11300 grams divided by 100.0869 grams per mole = 112.90 moles of CaCO3 in the bag.

5 0
3 years ago
What is the coefficient of silver in the final, balanced equation for this reaction?
katovenus [111]

Answer: 3

Explanation:

An oxide-reduction reaction or, simply, redox reaction, is a <u>chemical reaction in which one or more electrons are transferred between the reactants</u>, causing a change in their oxidation states, which is the hypothetical electric charge that the atom would have if all its links with different elements were 100% ionic.

For there to be a reduction-oxidation reaction, in the system there must be an element that yields electrons and another that accepts them:

  • The oxidizing agent picks up electrons and remains with a state of oxidation inferior to that which it had, that is, it is reduced.
  • The reducing agent supplies electrons from its chemical structure to the medium, increasing its oxidation state, ie, being oxidized.

To balance a redox equation you must <u>identify the elements that are oxidized and reduced and the amount of electrons that they release or capture, respectively. </u>

In the reaction that arises in the question the silver (Ag) is reduced <u>because it decreases its oxidation state from +1 to 0</u> and the aluminum (Al) is oxidized because <u>its oxidation state increases from 0 to +3</u>, releasing 3 electrons (e⁻). Then we can raise two half-reactions:

Ag⁺ + e⁻ → Ag⁰

Al⁰ → Al⁺³ + 3e⁻

In order to obtain the balanced equation, we must multiply the first half-reaction by 3 so that, when both half-reactions are added, the electrons are canceled. In this way:

(Ag⁺ + e⁻ → Ag⁰ ) x3

Al⁰ → Al⁺³ + 3e⁻               +

-------------------------------------

3Ag⁺ + Al⁰ → 3Ag⁰ + Al⁺³

So, the coefficient of silver in the final balanced equation is 3.

5 0
3 years ago
What is the formula for the compound iodine trichoride?
Neko [114]

Answer:

Cl 3 I

Explanation:

Molecular Weight. 233.36. Appearance. Red-orange to brown powder or chunks. Melting Point. 63 °C

4 0
2 years ago
Who is good at chemistry?! HMU asap!!!​
____ [38]
Id say i’m good i guess. send links for the brainly problems u need help with!
6 0
3 years ago
How do you tell if an element is a solid, liquid or gas (ex. Na2S)
svetoff [14.1K]
Solids have a definite shape, and a definite volume.
Liquids have a definite volume, but have no definite shape.
Gas have neither a definite volume nor a definite shape.

Hope this helps!
4 0
3 years ago
Read 2 more answers
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